On 02/05/2024 10:19, Jeremy Harris via Exim-users wrote:
> On 02/05/2024 03:38, Thomas Krichel via Exim-users wrote:
>> I have been wondering if there an exim filter or configuration
>> snippet that could, say for a set email-to addressrepec@???,
>> first spam filter, if not spam, take the from: field, make this the
>> reply-to, replace the original from field with say
>> forward@??? and then remail to a couple of addresses.
>
> SPF cares about the envelope-from for a message.
> An Exim transport can be configured to replace the existing
> envelope-from by using the "return_path" option.
>
> The From: header is distinct from the envelope-from in
> a message. SPF only cares about it for bounces (when the
> envelope-from is empty).
>
> The "headers_remove" and "headers_add" options are generic for both
> routers and transports, and transports also have "headers_rewrite".
>
> Your existing router that handles the forwarding
> is already changing the envelope-to.
You might also want to look into SRS, a standard way of doing it.
Exim has support for SRS in recent versions.
--
Cheers,
Jeremy
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